Measuring, weighing, and monitoring apparatus, namely, audio and radio signal measuring and monitoring devices in the nature of sound level meters, acoustic meters, radio-frequency power meters, volume level meters, frequency meters, voltage monitor modules and units, power distribution boxes, electricity meters, alternating electrical current monitor modules, electrical distribution boxes, power distributing blocks and electricity distribution consoles; sound, image, and radio transmitting, recording, and receiving devices, namely, audiovisual players and recorders, optical media players and recorders, namely, video disc players and recorders, DVD (video) players and recorders, CD (video) players and recorders, digital media video players and recorders, and video streaming players and recorders being computers, tablet computers, and video monitors, sound receivers, sound processors, sound recorders, sound players, namely, CD players, digital music players, MP3 players, MP4 players, audio signal transmitters, audio signal receivers, audio signal processors, audio signal recorders, audio signal players, radio signal transmitters, radio signal receivers, radio signal processors, radio signal recorders, radio signal players, television and video signal receivers and transmitters, antennas, namely, antennas for radio and television, satellite antennas, high-fidelity sound systems, home theatre surround sound systems, loudspeakers, headphones, earphones, headphones with microphones, earphones with microphones, sound bars, subwoofers, sound and video projectors, recording microphones, broadcasting microphones, studio microphones, on-stage microphones, hearing aid microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage; studio headphones, in-earphones for on-stage and recording studio usage, studio microphone amplifiers, noise filters for headphones, broadcasting antennas for radios and televisions; sound, image, and data storing devices, in the form of blank floppy disks, blank computer disks, blank USB flash drives, blank magnetic discs, blank secure digital memory cards, blank hard disks, blank flash drives, blank USB flash drives and USB memory cards, blank flash memory cards, flash memory cards, flash memory chips, optical and photo storage devices, namely, external hard drives, blank CD-Roms, blank CDs, blank DVDs, blank tape cassettes, blank video cassettes, vinyl records, blank optical discs, and computer hard drives; sound, image, and data storing devices, in the form of pre-recorded floppy disks, computer disks, USB drives, magnetic discs, secure digital memory cards, hard disks, flash drives, USB flash drives and USB memory cards, flash memory cards, flash memory chips, optical and photo storage devices, namely, external hard drives, CD-Roms drives, CDs, DVDs, tape cassettes, video cassettes, vinyl records, optical discs, and computer hard drives, all the aforementioned containing music and movies; data processing devices, namely, computer hardware for data processing; apparatus for reproduction of sound, namely, digital sound processors, sound mixers, sound transmitters, microphones, loudspeakers, electroacoustic transducers and electronic sound effect units and pedals for musical instruments; radio apparatus, namely, radios, broadband radios, car radios, radio antennas, radio aerials, digital audio broadcasting [DAB] radios, radios incorporating clocks, digital radios, mobile and portable radios, radio frequency adapters and amplifiers and connectors, radio receivers and transmitters, radio sets, radio signal tuners, satellite radios, and radio vacuum tubes; audio apparatus, namely, audio and radio signal receivers, audio and radio signal transmitters, headphones, earphones, microphones, sound amplifiers, loudspeaker, electric and electronic sound effects equipment and units for musical instruments, CD players and recorders, DVD (audio) players and recorders, MP3 players and recorders, audio cassette players and recorders, record players, personal stereos, digital music players and recorders; car audio apparatus, namely, car stereos, car radio tuners, car radios, car loudspeakers, car radios with CD player, car radios with audio cassette players, and car radio antennas; audio mixers, microphone mixers, radio frequency mixers, sound mixers and video mixers; video apparatus in the nature of electric and electronic devices for recording, broadcasting, transmitting, receiving, storing, mixing, editing, and playing TV signals, videos, images, and pictures, namely, digital media players, video cameras, video projectors, DVD (video and film) players and recorders, CD (video) players and recorders, video cassette players and recorders, set-top boxes; audio and video receivers; audio and video transmitters; surveying, signalling, metering, controlling or switching apparatus, namely, electricity limiters and meters, energy meters for tracking and monitoring energy usage, voltage regulators and limiters, electric power switches and converters, TV signal and audio signal monitors, sound amplifiers, current meters and limiters, and frequency meters, high and low frequency meters, signal amplifiers, and electrical current switching external and internal power supplies and converters, high frequency switching power supplies, high and low voltage power supplies, electric converters, electric transformers, electric power converters and transformers, electrical power testers, electrical power connectors, electric cables, power cables, battery charging cables, AC/DC power supplies, distribution boxes for electrical power, electric storage power banks, electric power supply distribution units, portable power supplies for microphones, electric musical instruments, loudspeaker, sound amplifiers and sound effect units, stereo and mono power supplies for microphones, electric power cables for microphones, voltage stabilizing power supplies, electrical power distributing blocks, electricity distribution consoles, electric adapter cables, power adapters for microphones; direct audio input boxes, being audio processing devices for transforming and converting radio signals, radio-frequency signals, and audio frequency signals, frequency converters, audio signal converters; television apparatus and parts thereof, namely, television sets, televisions, television signal transmitters, television signal receivers, television signal decoders, television signal converters, television cables, television display monitors, television remote controls, television mounts; video players, namely, DVD players, CD players, audio cassette players and multimedia players in the nature of digital music players, digital video players, intelligent videodisc players and recorders; DVD players and recorders; players and recorders of digital optical discs and other digital optical data storage media, namely, blank optical discs, CDs, DVDs, audio tapes, cassettes, vinyl records, external computer storage hard drives, external hard drives, flash memory chips, and USB flash drives and USB memory cards for storage of data; cameras; digital signage displays; digital photo frames; luminous signs; projectors, namely, sound projectors, cinematographic projectors, 3D holographic projectors, home cinema projectors, LCD projectors, motion picture projectors, movie projectors, video projectors, photography projectors, picture projectors, slide projectors, and mini beam projectors; image projectors, and video projectors; set-top boxes; apparatus for navigation, namely, portable GPS navigation computers and GPS navigation on-board computers for vehicles; scanners, namely, computer scanners, image scanners, 3D scanners, optical scanners, document, and hand-held electronic scanners; eyewear, namely, glasses with the function of wireless communication, smart glasses, night vision goggles, and virtual reality glasses; electric weighing scales, namely, electric food scales for kitchen usage and electric personal weighing scales; mobile weather stations; digital weather stations; radio alarm clocks; light emitting diodes (LEDs); photovoltaic cells; ergometer; hearing aids (non-medical), namely, TV-sound and audio assistive hearing and listening headphones; audio players and recorders; personal stereos; MP3 player; portable audio player, namely, portable MP3 players, portable digital music players, portable personal stereos, portable CD and cassette players; loudspeakers; on-stage monitors being loudspeakers, on-stage monitor loudspeakers; direct audio input boxes for impedance matching and impedance bridging for use with musical instruments, microphones, loudspeaker, amplifiers, and electroacoustic transducers and electric sound effect units; headphones; earphones; in-ear monitors; sound amplifying devices, namely, audio signal amplifiers; tuner, namely, radio tuner, television tuner, audio signal tuner; sound compressors comprised of audio signal processors and software that reduces, compresses, and amplifies the volume of sounds and audio signal's dynamic ranges; microphones; tubes for audio products, namely, vacuum, amplifier, electric discharge, speaking, thermionic, and electron tubes for microphones, microphone and sound amplifiers, musical instruments, loudspeaker, headphones, earphones, hearing aids, audio receivers, audio transmitters, audio recorders and audio cassette players, radios, and audio and sound effects units for microphones and musical instruments, amplifiers, pre-amplifiers; tubes for microphones; audio equalizer, namely, an electric sound effect filter for sound design and equalization of sound frequencies and other frequency based signals, namely, of radio frequency signals and high frequency signals, and sound equalizers; audio limiters comprised of dynamic audio and sound effects processors or software that limits and controls the output level of audio signals, and audio limiters for use with audio receivers and transmitters; audio gates, namely, electric and electronic effects units for musical instruments, microphones, and other electroacoustic apparatus, namely, headphones for noise cancelling, and audio gates for use with audio receivers and transmitters; record turntable; converters, namely, audio signal converters, electricity converters, current converters, electric power converters, frequency converters, level converters, DC/AC converters; audio mixers; audio levellers, namely, electric and electronic effects units for musical instruments, microphones, and other electroacoustic apparatus, namely, headphones for reducing, amplifying, and setting the loudness to a certain level, and levelers for use with audio receivers and transmitters; amplifiers, namely, power amplifiers, acoustic amplifiers, audio and audio frequency amplifiers, sound and stereo amplifiers, radio frequency amplifiers, amplifiers for microphones and musical instruments, pre-amplifiers, audio signal amplifiers; sound bars; radio transmitters; radio set; radio apparatus and parts thereof, namely, radios, broadband radios, car radios, radio antennas, radio aerials, digital audio broadcasting [DAB] radios, radios incorporating clocks, digital radios, mobile and portable radios, radio frequency adapters and amplifiers and connectors, radio receivers and transmitters, radio sets, radio signal tuners, satellite radios, and radio vacuum tubes; infrared detectors; walkie-talkies; telecommunication apparatus, namely, mobile telecommunication handsets, telephones, walkie-talkies; answering machines; fax machines; smartphones; mobile phones; telephones; video telephones; baby phones, being electric and electronic monitors to monitor and transmit sounds and movements made by an infant; radio communication apparatus and devices, namely, radio sets; antennas, namely, audio frequency signal receiving and transmitting antennas, radio antennas, and TV signal antennas; sonars; satellite dishes; encoded magnetic cards, namely, magnetically encoded identification cards, magnetically encoded key cards, magnetically encoded phone cards, magnetically encoded gift cards, magnetically encoded payment cards; chip cards, namely, computer memory chips for data storage and semi-conductor microchips; semiconductors; blank and pre-recorded storage media, namely, blank tapes for storage of computer data, optical disks featuring music, pre-recorded music compact discs; CDs, namely, blank CDs and pre-recorded CDs containing music and movies; DVDs, namely, blank DVDs and pre-recorded DVDs containing music and movies; sensors, namely, noise sensors, pressure sensors, temperature sensors, and light sensors; sirens; light dimmers; switches, namely, electric power switches, power switches, volume switches, audio signal switches, current switches, radio frequency switches, and audio level switches, namely, electric switches that control the level of audio frequency signals; electronic notice boards; automated teller machines [ATM]; calculators; cash registers; regulators to control the level or amount of sound, temperature, light, namely, heat regulators, regulators for air-conditioning units and systems, electronic controllers for heating pumps and systems, electronic controllers for air cooling fans, illumination regulators, noise regulators, and volume regulators; modems; computer server; electronic pocket translators; computer printers; computer application software for operating computers, smart TVs, set-top boxes, audio disc players, video disc players, hearing aids, digital music players, microphones, headphones and loudspeakers and computer software for network management; software for telecommunication and data processing, namely, software for processing images, graphics and text; software for producing, processing, recording, broadcasting, playing, mixing, editing, modifying, converting, amplifying, transforming, and mastering data in the nature of videos, images, sounds and music; software for use in the operation of microphones, loudspeaker, headphones, hearing aids, digital music players and audio recorders, audio signal tuners, transmitters and receivers, televisions, audio-visual receivers, uninterruptible power supplies, electronic musical instruments, sound effect units for electric musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; downloadable application software for operating computers, smart TVs, set-top boxes, audio disc players, video disc players, hearing aids, digital music players, microphones, headphones and loudspeakers and computer application software for network management; downloadable software for telecommunication and data processing, namely, software for processing images, graphics and text; downloadable software for producing, processing, recording, broadcasting, playing, mixing, editing, modifying, converting, amplifying, transforming, and mastering data in the nature of videos, sounds and music; downloadable software for use in the operation of microphones, loudspeaker, headphones, hearing aids, digital music players and audio recorders, audio signal tuners, transmitters and receivers, uninterruptible power supplies, televisions, audio-visual receivers, electronic musical instruments, sound effect units for electric musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; recorded application software for operating computers, smart TVs, set-top boxes, audio disc players, video disc players, hearing aids, digital music players, microphones, headphones and loudspeakers and computer application software for network management; recorded software for telecommunication and data processing, namely, software for processing images, graphics and text; recorded software for producing, recording, broadcasting, playing, mixing, editing, modifying, amplifying, converting, transforming, and mastering data in the nature of videos, sounds and music; recorded software for use in the operation of microphones, loudspeaker, headphones, hearing aids, digital music players and audio recorders, uninterruptible power supplies, audio signal tuners, transmitters and receivers, televisions, audio-visual receivers, electronic musical instruments, sound effect units for electric musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; software for producing, mixing, editing, and mastering sounds and music; computer application programs for operating computers, smart TVs, set-top boxes, audio disc players, video disc players, hearing aids, digital music players, microphones, headphones and loudspeakers and computer application programs for network management; computer programs for telecommunication and data processing, namely, computer programs for processing images, graphics and text; computer programs for producing, processing, recording, broadcasting, playing, mixing, editing, modifying, amplifying, converting, transforming, and mastering data in the nature of videos, images, sounds, and music; computer programs for use in the operation of microphones, loudspeaker, headphones, hearing aids, digital music players and audio recorders, audio signal tuners, transmitters and receivers, uninterruptible power supplies, televisions, audio-visual receivers, electronic musical instruments, sound effect units for electric musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; computer games; mobile applications for operating computers, smart TVs, set-top boxes, audio disc players, video disc players, hearing aids, digital music players, microphones, headphones and loudspeakers and software applications for network management; mobile applications and software applications for telecommunication and data processing, namely, mobile applications and software applications for processing images, graphics and text; mobile applications and software applications for producing, processing, recording, broadcasting, playing, mixing, editing, modifying, amplifying, converting, transforming, and mastering data in the nature of videos, images, sounds and music; mobile applications and software applications for use in the operation of microphones, loudspeaker, headphones, hearing aids, digital music players and audio recorders, uninterruptible power supplies, audio signal tuners, transmitters and receivers, televisions, audio-visual receivers, electronic musical instruments, sound effect units for electric musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; plug-ins being downloadable software for producing, processing, recording, broadcasting, playing, mixing, editing, modifying, amplifying, converting, transforming, and mastering data, namely, videos, images, sounds, and music and plug-ins being downloadable software for use in the operation of microphones, loudspeaker, headphones, digital music players and recorders, audio signal tuners, transmitters and receivers, uninterruptible power supplies, televisions, audio-visual receivers, electronic musical instruments, sound effect units for electronic musical instruments, and studio and on-stage recording and broadcasting equipment in the nature of recording microphones, broadcasting microphones, studio microphones, loudspeaker used in recording and broadcasting studios, loudspeakers for on-stage usage, studio headphones, in-earphones for on-stage and recording studio usage and studio microphone amplifiers; smartwatches; smart wristbands; audio interfaces for computers; computers; computer hardware; notebook computers; PC tablet; laptop computers; electronic book readers; computer and television monitors; wearable activity trackers; computer mouse; computer keyboard; batteries, namely, general purpose batteries, electrical storage batteries, alkaline batteries, solar batteries, lithium batteries, lithium-ion batteries, nickel-cadmium batteries, AAA batteries, AA batteries, and 9V batteries, power banks, unchargeable electric storage and rechargeable electric storage batteries; batteries for electric devices, namely, loudspeaker, headphones, earphones, hearing aids, microphones, remote control receivers and transmitters, remote controls for microphones, speakers, audio amplifiers, televisions, and radios, televisions, audio-visual devices, namely, acoustic amplifiers, power amplifiers, telephones, cameras, notebooks, laptops, PC tablets, and computers; solar batteries; battery chargers for electrical storage batteries, automotive batteries, e-vehicle batteries, e-bike batteries, alkaline batteries, batteries for use in hearing aids, batteries for mobile phones and computers, and power banks, loudspeaker, headphones, earphones, hearing aids, microphones, telephones and mobile phones, cameras, and computers and for rechargeable batteries therefor; battery chargers for general purpose and electric storage batteries; solar-powered battery chargers; power banks; accumulators being electrical storage batteries; adapters, namely, cable adapters, plug adapters, audio signal adapters, being adapter cables and plugs for connecting different external audio equipment and apparatus with different interfaces with each other, TV signal adapters, radio signal adapters, radio frequency adapters, power adapters for computers; connectors, namely, electrical connectors, electric connectors, power connectors, cable connectors; safety clothing for protection against accident or injury with built-in wireless data communication devices and sensors; remote controls used to control a machine or other device, namely, audio and video receivers and transmitters, audio-visual devices, namely, loudspeakers, microphones, headphones, earphones, hearing aids, CD players, DVD players, audio and video cassette and record players and recorders, televisions, and music and sound recording or broadcasting studio and on-stage equipment from a distance, namely, sound recording studio microphones and on-stage monitor loudspeakers; cables, namely, power cables, electric and electrical cables, charging cables and cables for microphones, amplifiers, loudspeaker, electric musical instruments, and external power supply boxes; electrical and electric plugs and electrical and electric sockets; thermostats, electrical regulating apparatus, being measuring meters and regulators for air-conditioning and heating systems, electrical energy regulators, and voltage regulators; wall mounts for TV and audio-apparatus, namely, loudspeaker, sound bars, radios, home theatre surround sound systems, personal stereo systems, CD and audio cassette players, and microphones; chargers, namely, chargers for machines and electric devices in the nature of mobile phones, computers, uninterruptible power supplies, microphones, loudspeaker, headphones, earphones, hearing aids, audio signal receivers, audio signal transmitters, sound amplifiers and electric musical instruments; microphones grilles; cases and covers for phones, microphones, loudspeakers, headphones, tablet computers, notebooks, cameras, portable radio and audio devices, namely, microphones, microphone amplifiers, loudspeaker, headphones, earphones, hearing aids, portable stereo systems, digital audio and music players and recorders, and other portable electroacoustic and sound effect equipment, namely, electroacoustic transducers; cabinets for loudspeakers.